<template>
  <div class="person">
    <h2>姓名：{{ name }}</h2>
    <h2>年龄：{{ age }}</h2>
    <h2>地址：{{ address }}</h2>
    <button @click="changeName">修改名字</button>
    <button @click="changeAge">修改年龄</button>
    <button @click="showTel">查看联系方式</button>
  </div>
</template>

<script lang="ts">
export default {
  name: "Person",
};
</script>

<script setup lang="ts">
import { ref } from "vue";
// 数据
let name = ref("张三"); // 此时 name 是响应式的
let age = 18;
let tel = "13888888888";
let address = "北京昌平区宏福苑·宏福科技园";

// 方法
function changeName() {
  name.value = "zhang-san";
  console.log(name); //name确实改了（在控制台可见），但name不是响应式的
}
function changeAge() {
  age += 1;
}
function showTel() {
  alert(tel);
}
</script>

<style scoped>
.person {
  background-color: skyblue;
  box-shadow: 0 0 10px;
  border-radius: 10px;
  padding: 20px;
}
button {
  margin: 0 5px;
}
</style>
